What are your names for all characters that are gender swapped? I never went that far with mines. Sometimes...rarely. But I am curious 🤔
OOHH NICE QUESTION!!
(Also hii Sleepy!! Nice to see you in my inbox!!)
As for what are all the names for all of my gender swap characters It a bit tricky bc some don’t have names but I’ll try to answer ^^
I do have quite a handful of genderswap characters with names and unfortunately, with Tumblr’s 10 images limit I can only chalk it up to just one image 😭 hope that is alright (some of the art feature. Here is kind of old, but designs are still pretty accurate)
The names in order are:
Freddy Fieldmouse
Monica Mouse 
Fiona the cat
Julia the cat
Bimbo the Dog (no name change bc i couldn’t find a name for her 😔)
Betty the wolf
Francis “Fran” Cottontail
Alex the angel 
Becky the dancing Demon
(Sir) Chaple
Venus (Millie’s dog)
Cuphead (no name change)
Maggie or Muggal
Goofy (or Goof), Dandelion (Dandy), and Dona
Fea (Millier’s Cat)
Ofc you already know about Millie, Ossia, Miller, and Orwin
I hope to make more gender swap designs for two characters in the future, especially for Max, Fleischer characters and Looney Tunes. It’s just kind of hard to turn of female character into a male :’]
As for how I name them,honestly, I just tried to think of names that makes sense in both canon and in swap. Like for example, Millie and Miller almost sounds like Mickey and Minnie but not exactly.
But if the characters name sounds pretty neutral, then I just leave it as it is. Like my genderswap version of Cuphead, her name is the same as the og because there’s nothing really to change about it. The name is itself is fine as it is lol
Hopefully this answers your question and I also very much love your gender swap designs as well ^^ there are absolutely adorable 
